US Bridges

Spring Mill Road over Amtrak(main Line);access

Good

Delaware County, Pennsylvania · Villanova Station 14K09 · Structure no. 000000000014979

Built
1993
32 years old
Condition
Good
inspected February 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
201 ft
2 main spans
Daily traffic
7,830
2024 count
Owner
State
State Highway Agency

About this bridge

Spring Mill Road over Amtrak(main Line);access is a steel continuous stringer/multi-beam or girder carrying Spring Mill Road over Amtrak(main Line);access in Delaware County, Pennsylvania. It was built in 1993, so it is 32 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,830 vehicles a day, roughly 5% of them trucks, projected to reach 10,567 by 2032. The structure is 201 ft (61.3 m) long and 45 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSpring Mill Road
CrossesAmtrak(main Line);access
LocationVillanova Station 14K09
RouteState Highway 320
Coordinates40.03889, -75.3426
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating92 US tons
Inventory rating55 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length201 ft (61.3 m)
Longest span98 ft (29.9 m)
Deck width45 ft (13.6 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,830 (2024)
Projected traffic10,567 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Spring Mill Road over Amtrak(main Line);access built?

It was built in 1993, making it 32 years old in 2025.

What condition is Spring Mill Road over Amtrak(main Line);access in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2022.

How much traffic does Spring Mill Road over Amtrak(main Line);access carry?

About 7,830 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Spring Mill Road over Amtrak(main Line);access?

The structure is 201 ft (61.3 m) long with a longest span of 98 ft (29.9 m) and a deck 45 ft wide.

Who owns Spring Mill Road over Amtrak(main Line);access?

It is owned by the State Highway Agency.